Switch



Jan. 24, 1933. HANSON 1,895,035

SWITCH Filed May 29, 1931 fizmaorih Patented Jan. 24, 1933 I UNITED STATES PATENT OFFICE DAVE HANSON, OF MCCALLSIBURG, IOWA SWITCH Application filed May 29, i931. Serial No. 540,980.

This invention relates to new and useful tending therethrough, to receive the threaded improvements in circuit makers and breakers, shank of the central contact 11 which is and more particularly to a novel switch unit provided with a screw driver block 12. capable of being used in conventional screw The opposite open end of the shell 6 is 5 type electrical receptacles. provided with a circumferentially extending 55 The principal object of this invention is to shoulder having corrugations 13 on the peprovide a switch of the character mentioned ripherv thereof. Extending into the shell wherein the parts are detachably connected from the jacket 7 is the conductor strip 14 to permit ready disassembly to permit repair which connects to a semi-circular band 15 on 0 or replacement of parts in a quick and eflicient the internal shoulders of the shell. 0

manner. For disposition into the shell, a metallic Another important object of the invention barrel 1? is provided and its closed end 18 is i to o id a it h f th hara ter menprovided with a threaded opening to receive ti n d id d ith a thread d bas ort on the inner end of the contact shank 10, as in 15 capable of disposition for operation in conthe manner shown in Fig. 4. An annulus 19 65 ventional electrical receptacles of the screw circumscribes the opposite end of the barrel type. 17 and is suitably secured thereto. The inner Other important objects and advantages side of this annulus 19 carries a circular conof the invention will become apparent to the 390i stri 20 from which a connector 21 ex- 0 reader of the following specification. te s connector i p de th an In the drawing opening therein to receive the set screw 21a Figure 1 represents a front elevational which is disposed into the di-electric bushview of the switch connected toaconventional in QQ. This bushing i l d Wi in an receptacle. open-inc 23 in the barrel 17 intermediate the Fig. 2 represents a side elevational view ends thereof and opens into the. circumfer- 75 of th it h u it, ent allv exten d ne: groove 24 on the inner side Fig, 3 represents a, front end elevational 0 Ch? bilil'el. The inner end Of this set screw view of the shell of th wit h, 21a is exposed on the surface of the inner re- Fig. 4.- represents a longitudinal enlarged ve end of the bushing 22.

sectional view through the switch unit shown a lv m unted in the barrel 17 is the i Fi 2, cvlindrical. bodv 25 of some suitable conduc- 5 represents a, cross sectional iew of tive ll'liliittl'lfll. llOtlY 25 is provided. with the assembled switch taken substantially on a transverselv extend n bore 26. in each end li 5 .5 f Fi 4, of which a ba l contact 27 is mounted.

Referring to the drawing wherein like nu- InterDOsed between the balls is fl. eompresss5 morals designate like parts, it can be seen that Swing 28 Which m y Serves t0 P O- numeral 5 refers to the wall plate of an elec- Jfi the balls outwardly Into the aforementrieal receptacle of the threaded ty Thi tloned groove 24 on the inner side of the barreceptacle is of conventional make, and forms l 1 AS is clearly shown in Fig. 5. the no part of the pro-gent invention The presbarrel 17 at the gTOOVQ 24 PI'OVldQd at 90 90 ent inventi n involves onlv th wit h it intervals with recesses 29 in which the balls which is clearly shown in Fig. 2. 27 can seat.

In. carrying out the present invention, a. The outer end of the body 25 is provided 1 11 6 ig id d t ll ith a ja k t 7 with a threaded reduced extension 30 for enshaped to provide threads for cooperation ,Q'agrement into the metallic bushing 31 of the with the threads of a con entional threaded dielectric knob 32. type electric receptacle. This shell 6 is of it can now be observed,that when the knob (ii-electric material and hollow. and is prorotated to position wherein one of the vided at one end with a centrally projecting set screws 21a is engaged by one of the balls protuberance 8 having a threaded bore 9 ex- 2;, connection will be established between the bracket 7 and the contact 11, by Way of the connection 14, strip 16, band 20, connection 21, screw 21a, ball 27, and shell 17 into which the shank 10 of the contact 11 is threaded.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size andmaterials may be resorted to without departing from the spirit and scope of the invention as claimed" hereinaften Having thus described my invention, what I claim as new is 1. A switch of the character described com- 15 prising a body of insulating material provided with athreaded jacket thereon, a con tact'onlon e end of the body, (rotary means in thebody connecting or disconnecting the con tact with respect to the jacket, said rotary meanscolnprising a barrel in the body having a circumferentially extending groove on its inner side, a rotary plug in the barrel, a, contact on the rotary plug, a contact onthe barrel, and a connection between the lastmentioned contact and the, said jacket, said barreland' plug being of current conductive material and a connection between the contact on the body and the said barrel.

:2; A switch of the character described comprising a di-electric bodyprovided with a threaded shell, a contact at one end of the body, spaced from the shell, a rotor in the body provided with a knob atits outer end, said contact being connected to the rotor, I

and contactor means between the rotor and the shell, said contactor rneans comprising a transverseborethrough the rotor, a contact connected to 'the shell, and a spring. projected contact member in thebore engageable 4 with the cont act oftheshell. H i

plug switch of the character described comprising a hollow di-electric body,

a c n a t a 0 1 s e d of hecb dy, a cond barrel in the body, said contact being provided with a threaded shank engageable in to the barrel, a rotor rotatably mounted in the barrel', interlocking means'between the rotor and the barrel, and contact means between the rotor and the shell.

v In testimonyiwhereof I aifix my signature.

" DAVE HANSON. 

